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unobserve()方法命令IntersectionObserver停止对一个元素的观察。语法
IntersectionObserver.unobserve(target);
参数
target- 要取消观察的目标，如果没有提供，方法不做任何事情，也不会抛出异常。
返回值
undefined.
例子
下面代码段展示了一个观察器被创建，一个元素被观察，以及取消观察的过程。
var observer = new IntersectionObserver(callback);
observer.observe(document.getElementById("elementToObserve"));
/* ... */
observer.unobserve(document.getElementById("elementToObserve"));
说明
| Specification | Status | Comment |
|---|---|---|
| Intersection Observer IntersectionObserver.unobserve() |
Working Draft | Initial definition. |
浏览器兼容性
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
unobserve | Chrome Full support 51 | Edge
Full support
15
| Firefox
Full support
55
| IE No support No | Opera Full support Yes | Safari Full support 12.1 | WebView Android Full support 51 | Chrome Android Full support 51 | Edge Mobile Full support Yes | Firefox Android ? | Opera Android ? | Safari iOS Full support 12.2 | Samsung Internet Android Full support 5.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.